.page-faq {
  --faq-hair: 1px solid var(--line);
  --faq-accent: var(--cyan);
  color: var(--paper);
  font-family: var(--font-body);
}

.page-faq .mono {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
}

.page-faq .section {
  padding-block: clamp(44px, 6vw, 88px);
}

.page-faq .section__title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(26px, 4.4vw, 44px);
  line-height: 1.08;
  letter-spacing: -0.01em;
  margin: 0 0 12px;
}

.page-faq .section__head .lead {
  max-width: 68ch;
  margin: 0;
}

/* ---------- 首屏 ---------- */

.page-faq .faq-hero {
  position: relative;
  padding-block: clamp(24px, 3.5vw, 40px) clamp(36px, 5vw, 68px);
  border-bottom: var(--faq-hair);
  background:
    radial-gradient(120% 100% at 88% 0%, rgba(34, 211, 238, 0.10), transparent 58%),
    radial-gradient(80% 90% at 0% 100%, rgba(240, 36, 140, 0.07), transparent 62%),
    var(--ink-900);
  overflow: hidden;
}

.page-faq .faq-hero .breadcrumb {
  margin-bottom: clamp(22px, 3vw, 36px);
}

.page-faq .faq-hero__grid {
  display: grid;
  gap: clamp(24px, 4vw, 52px);
  align-items: center;
}

.page-faq h1 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(34px, 7.4vw, 76px);
  line-height: 1.02;
  letter-spacing: -0.015em;
  margin: 0 0 18px;
}

.page-faq .faq-mark {
  color: var(--cyan);
}

.page-faq .faq-hero__copy .lead {
  max-width: 62ch;
  margin: 0 0 26px;
}

.page-faq .faq-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-faq .faq-hero__figure {
  margin: 0;
  border: var(--faq-hair);
  background: var(--ink-800);
  position: relative;
}

.page-faq .faq-hero__figure::after {
  content: "";
  position: absolute;
  inset: auto 0 0 0;
  height: 2px;
  background: linear-gradient(90deg, var(--cyan), var(--magenta));
}

.page-faq .faq-hero__figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  aspect-ratio: 14 / 9;
}

.page-faq .faq-hero__stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: clamp(28px, 4vw, 48px) 0 0;
  padding: 0;
  background: var(--line);
  border: var(--faq-hair);
}

.page-faq .faq-stat {
  background: var(--ink-900);
  padding: 16px clamp(14px, 2vw, 22px);
}

.page-faq .faq-stat__label {
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--paper-2);
  margin: 0 0 6px;
}

.page-faq .faq-stat__value {
  margin: 0;
  font-size: clamp(22px, 3vw, 30px);
  font-weight: 600;
  color: var(--cyan);
  line-height: 1;
}

.page-faq .faq-stat__unit {
  font-size: 13px;
  color: var(--paper-2);
  margin-left: 4px;
}

/* ---------- 六类索引 ---------- */

.page-faq .faq-index {
  background: var(--ink-900);
}

.page-faq .faq-index__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--line);
  border: var(--faq-hair);
}

.page-faq .faq-index__cell {
  display: grid;
  grid-template-columns: auto 1fr auto;
  grid-template-areas:
    "num name count"
    "num desc count";
  column-gap: 16px;
  align-items: center;
  padding: 18px 20px;
  background: var(--ink-800);
  text-decoration: none;
  color: inherit;
  transition: background 0.18s ease, box-shadow 0.18s ease;
  box-shadow: inset 3px 0 0 transparent;
}

.page-faq .faq-index__cell:hover,
.page-faq .faq-index__cell:focus-visible {
  background: var(--ink-700);
  box-shadow: inset 3px 0 0 var(--faq-accent);
}

.page-faq .faq-index__cell:nth-child(1) { --faq-accent: var(--cyan); }
.page-faq .faq-index__cell:nth-child(2) { --faq-accent: var(--magenta); }
.page-faq .faq-index__cell:nth-child(3) { --faq-accent: var(--amber); }
.page-faq .faq-index__cell:nth-child(4) { --faq-accent: var(--mint); }
.page-faq .faq-index__cell:nth-child(5) { --faq-accent: var(--rose); }
.page-faq .faq-index__cell:nth-child(6) { --faq-accent: var(--cyan); }

.page-faq .faq-index__num {
  grid-area: num;
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--faq-accent);
  align-self: stretch;
  display: flex;
  align-items: center;
  padding-right: 12px;
  border-right: var(--faq-hair);
}

.page-faq .faq-index__name {
  grid-area: name;
  font-family: var(--font-display);
  font-size: clamp(17px, 2vw, 21px);
  font-weight: 600;
  letter-spacing: 0.01em;
}

.page-faq .faq-index__desc {
  grid-area: desc;
  font-size: 13.5px;
  line-height: 1.5;
  color: var(--paper-2);
  margin-top: 4px;
}

.page-faq .faq-index__count {
  grid-area: count;
  font-size: 12px;
  color: var(--paper-2);
  white-space: nowrap;
}

/* ---------- 检索提示 ---------- */

.page-faq .faq-latest {
  background: var(--ink-900);
}

.page-faq .faq-hint {
  display: grid;
  gap: 1px;
  background: var(--line);
  border: var(--faq-hair);
  margin-bottom: clamp(28px, 4vw, 44px);
}

.page-faq .faq-hint__figure {
  margin: 0;
  background: var(--ink-800);
  overflow: hidden;
}

.page-faq .faq-hint__figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  aspect-ratio: 3 / 2;
}

.page-faq .faq-hint__body {
  background: var(--ink-800);
  padding: clamp(20px, 3vw, 32px);
}

.page-faq .faq-hint__body h3 {
  font-family: var(--font-display);
  font-size: clamp(19px, 2.4vw, 26px);
  font-weight: 600;
  margin: 0 0 10px;
}

.page-faq .faq-hint__body p {
  margin: 0 0 12px;
  max-width: 58ch;
}

.page-faq .faq-hint__tip {
  margin: 0;
  font-size: 12.5px;
  color: var(--cyan);
  letter-spacing: 0.02em;
}

/* ---------- 折叠分组 ---------- */

.page-faq .faq-group {
  margin-bottom: clamp(32px, 4.5vw, 56px);
  scroll-margin-top: calc(var(--topbar-h) + 16px);
}

.page-faq .faq-group__head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--cyan);
}

.page-faq .faq-group__num {
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--cyan);
}

.page-faq .faq-group__title {
  flex: 1;
  font-family: var(--font-display);
  font-size: clamp(20px, 2.6vw, 28px);
  font-weight: 600;
  margin: 0;
  color: var(--paper);
}

.page-faq .faq-group__count {
  font-size: 12px;
  color: var(--paper-2);
  white-space: nowrap;
}

.page-faq .faq-item {
  border-bottom: var(--faq-hair);
  scroll-margin-top: calc(var(--topbar-h) + 16px);
}

.page-faq .faq-item__summary,
.page-faq .faq-release__summary {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 16px 6px;
  cursor: pointer;
  list-style: none;
}

.page-faq .faq-item__summary::-webkit-details-marker,
.page-faq .faq-release__summary::-webkit-details-marker {
  display: none;
}

.page-faq .faq-item__summary:hover .faq-item__q,
.page-faq .faq-release__summary:hover .faq-release__title {
  color: var(--cyan);
}

.page-faq .faq-item__num {
  flex: none;
  padding-top: 3px;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--cyan);
}

.page-faq .faq-item__q {
  flex: 1;
  font-size: 15.5px;
  line-height: 1.55;
  font-weight: 500;
  color: var(--paper);
  transition: color 0.16s ease;
}

.page-faq .faq-item[open] .faq-item__q {
  color: var(--cyan);
}

.page-faq .faq-item__sign {
  position: relative;
  flex: none;
  width: 14px;
  height: 14px;
  margin-top: 6px;
  margin-left: auto;
}

.page-faq .faq-item__sign::before,
.page-faq .faq-item__sign::after {
  content: "";
  position: absolute;
  background: var(--cyan);
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.page-faq .faq-item__sign::before {
  left: 0;
  right: 0;
  top: 6px;
  height: 1.5px;
}

.page-faq .faq-item__sign::after {
  top: 0;
  bottom: 0;
  left: 6px;
  width: 1.5px;
}

.page-faq .faq-item[open] .faq-item__sign::after,
.page-faq .faq-release__row[open] .faq-item__sign::after {
  transform: scaleY(0);
  opacity: 0;
}

.page-faq .faq-item__body {
  padding: 0 6px 18px 34px;
  color: var(--paper-2);
  font-size: 14.5px;
  line-height: 1.75;
}

.page-faq .faq-item__body p {
  margin: 0 0 12px;
  max-width: 78ch;
}

.page-faq .faq-item__body a {
  color: var(--cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .faq-item__foot {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  padding-top: 10px;
  border-top: 1px dashed var(--line);
}

.page-faq .faq-item__meta {
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--paper-2);
}

.page-faq .faq-item__foot .copy-btn {
  margin-left: auto;
}

.page-faq .faq-empty {
  margin: 0;
  padding: 22px;
  border: 1px dashed var(--line);
  color: var(--paper-2);
  font-size: 14.5px;
  background: var(--ink-800);
}

/* ---------- 版本说明时间轴 ---------- */

.page-faq .faq-release {
  background:
    linear-gradient(180deg, var(--ink-800), var(--ink-900));
  border-top: var(--faq-hair);
}

.page-faq .faq-release__list {
  position: relative;
  border-top: var(--faq-hair);
}

.page-faq .faq-release__row {
  border-bottom: var(--faq-hair);
  position: relative;
  padding-left: 16px;
}

.page-faq .faq-release__row::before {
  content: "";
  position: absolute;
  left: 0;
  top: 22px;
  width: 5px;
  height: 5px;
  background: var(--amber);
  transform: rotate(45deg);
}

.page-faq .faq-release__week {
  flex: none;
  padding-top: 3px;
  font-size: 12.5px;
  letter-spacing: 0.09em;
  color: var(--amber);
}

.page-faq .faq-release__title {
  flex: 1;
  font-size: 15.5px;
  line-height: 1.5;
  font-weight: 500;
  color: var(--paper);
  transition: color 0.16s ease;
}

.page-faq .faq-release__body {
  padding: 0 6px 18px 16px;
}

.page-faq .faq-release__changes {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 8px;
}

.page-faq .faq-release__changes li {
  position: relative;
  padding-left: 16px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--paper-2);
}

.page-faq .faq-release__changes li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 8px;
  height: 1px;
  background: var(--amber);
}

/* ---------- 高频场景 ---------- */

.page-faq .faq-deep {
  background: var(--ink-900);
  border-top: var(--faq-hair);
}

.page-faq .faq-deep__steps {
  list-style: none;
  margin: 0 0 clamp(22px, 3vw, 34px);
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--line);
  border: var(--faq-hair);
  counter-reset: none;
}

.page-faq .faq-deep__step {
  background: var(--ink-800);
  padding: clamp(18px, 2.6vw, 28px);
  border-left: 3px solid var(--magenta);
}

.page-faq .faq-deep__step:nth-child(2) { border-left-color: var(--cyan); }
.page-faq .faq-deep__step:nth-child(3) { border-left-color: var(--amber); }
.page-faq .faq-deep__step:nth-child(4) { border-left-color: var(--mint); }

.page-faq .faq-deep__no {
  display: block;
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--paper-2);
  margin-bottom: 8px;
}

.page-faq .faq-deep__step h3 {
  font-family: var(--font-display);
  font-size: clamp(18px, 2.2vw, 23px);
  font-weight: 600;
  margin: 0 0 8px;
  color: var(--paper);
}

.page-faq .faq-deep__step p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--paper-2);
}

.page-faq .faq-deep__links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

/* ---------- 联系 ---------- */

.page-faq .faq-help {
  background: var(--ink-900);
  border-top: var(--faq-hair);
}

.page-faq .faq-help__panel {
  display: grid;
  gap: 1px;
  background: var(--line);
  border: var(--faq-hair);
}

.page-faq .faq-help__copy {
  background: var(--ink-800);
  padding: clamp(22px, 3.4vw, 40px);
  border-top: 3px solid var(--cyan);
}

.page-faq .faq-help__copy h2 {
  font-family: var(--font-display);
  font-size: clamp(22px, 3.2vw, 34px);
  font-weight: 600;
  margin: 0 0 12px;
}

.page-faq .faq-help__copy p {
  margin: 0 0 20px;
  max-width: 54ch;
  color: var(--paper-2);
}

.page-faq .faq-help__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--line);
}

.page-faq .faq-help__item {
  background: var(--ink-800);
  padding: 16px clamp(22px, 3.4vw, 40px);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
}

.page-faq .faq-help__label {
  flex: none;
  width: 76px;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--paper-2);
}

.page-faq .faq-help__value {
  flex: 1;
  min-width: 0;
  font-size: 14.5px;
  color: var(--paper);
  word-break: break-word;
}

.page-faq .faq-help__item .copy-btn {
  flex: none;
}

/* ---------- 响应式 ---------- */

@media (min-width: 640px) {
  .page-faq .faq-hero__stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-faq .faq-index__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-faq .faq-hint {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr);
    align-items: stretch;
  }

  .page-faq .faq-hint__figure img {
    height: 100%;
    aspect-ratio: auto;
    min-height: 220px;
  }

  .page-faq .faq-deep__steps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-faq .faq-help__panel {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  }
}

@media (min-width: 1080px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
  }

  .page-faq .faq-index__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-faq .faq-deep__steps {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-faq .faq-item__body {
    padding-left: 40px;
    padding-right: 40px;
  }

  .page-faq .faq-release__row {
    padding-left: 26px;
  }

  .page-faq .faq-release__body {
    padding-left: 30px;
  }
}

@media (min-width: 1400px) {
  .page-faq .faq-group {
    margin-bottom: 64px;
  }
}
<<<END>>>